Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters

Data, P.; Pander, P.; Okazaki, M.; Takeda, Y.; Minakata, S.; Monkman, A.P.

doi:10.1002/anie.201600113

Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters

Data, P.; Pander, P.; Okazaki, M.; Takeda, Y.; Minakata, S.; Monkman, A.P.

Authors

P. Data

Piotr Pander piotr.h.pander@durham.ac.uk
Academic Visitor

M. Okazaki

Y. Takeda

S. Minakata

Professor Andrew Monkman a.p.monkman@durham.ac.uk
Professor

Abstract

A new family of thermally activated delayed fluorescence (TADF) emitters based on U-shaped D-A-D architecture with a novel accepting unit has been developed. All investigated compounds have small singlet-triplet energy splitting (E-ST) ranging from 0.02 to 0.20eV and showed efficient TADF properties. The lowest triplet state of the acceptor unit plays the key role in the TADF mechanism. OLEDs fabricated with these TADF emitters achieved excellent efficiencies up to 16% external quantum efficiency (EQE).

Citation

Data, P., Pander, P., Okazaki, M., Takeda, Y., Minakata, S., & Monkman, A. (2016). Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters. Angewandte Chemie International Edition, 55(19), 5739-5744. https://doi.org/10.1002/anie.201600113

Journal Article Type	Article
Online Publication Date	Apr 6, 2016
Publication Date	May 4, 2016
Deposit Date	Jan 18, 2017
Publicly Available Date	Aug 11, 2017
Journal	Angewandte Chemie International Edition
Print ISSN	1433-7851
Electronic ISSN	1521-3773
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	55
Issue	19
Pages	5739-5744
DOI	https://doi.org/10.1002/anie.201600113

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Copyright Statement
This is the peer reviewed version of the following article: Data, P., Pander, P., Okazaki, M., Takeda, Y., Minakata, S. & Monkman, A.P. (2016). Dibenzo[a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters. Angewandte Chemie International Edition 55(19): 5739-5744, which has been published in final form at https://doi.org/10.1002/anie.201600113. This article may be used for non-commercial purposes in accordance With Wiley-VCH Terms and Conditions for self-archiving.